Binocular-loop.



G. H. PIXLEY.

BINOUULAR LOOP. APPLICATION FILED r1113. 17, 1912.

1,033,119. Patented July 23, 1912.

UNITED STATES PATENT OFFICE.

CHARLES HENRY PIXLEY, OF CHICAGO, ILLINOIS, ASSIGNOR TO F. A. HARDY 8:;COMPANY, A CORPORATION OF ILLINOIS.

BINOOULAR-LOOP.

Specification of Letters Patent.

Patented July 23, 1912.

Application filed February 17, 1912. Serial No. 678,324.

To all whom it may concern Be it known that I, CHARLES HENRY Pix- LEY, acitizen of the United States, and a resident of Chicago, in the countyof Cook and State of Illinois, have invented a new and usefulBinocular-Loop, of which the following is a specification.

Articles which are designed to hold magnifiers in suitable position foruse before the eyes are commonly known to the trade and to the users ofsaid articles as loops, and, as is well known, in order to secure aproper blending of each magnified image without undue stress upon themuscles of the eyes, binocular magnifiers must be located a suitabledistance apart and must also be set at a proper angle to one another ormore properly to the eyes of the wearer.

My invention has relation to the provision of extremely simple andeffective means in binocular loops or magnifiers for suitably adjustingboth the distance apart and the angle of the magnifiers.

I have attained the above objects by means 01 the structure illustratedin the accompanying drawing, in which Figure 1 is a perspective of theframe of a binocular loop embodying my invention, and Fig. 2 is asection through the means I provide for frictionally maintaining thedesired adjustment when the same has been secured.

Similar reference characters refer to similar portions throughout theseveral views.

The frame comprises a bridge 1, adapted to fit and rest upon the bridgeof the nose. To the ends of the bridge are secured the right angledpieces, 1 which drop downwardly and then extend outwardly to the side ofthe face in a position which will not cross or interfere with the fieldof vision. To the outer ends of the pieces, 1, are secured by pivots, 1temples, 1 which maintain the frame in position upon the face. To theportions of the pieces, 1 which extend downward from the bridge aresecured the forwardly extending flexible pieces, 2, in the centralportions of which are pro vided the slots, 2, and upon their forwardends, 2, are secured laterally extending lens cells or rims, 3, intowhich may be set either temporarily or permanently, the desiredmagnifiers (not shown).

' For the purpose of adjusting the distance between the magnifiers, and,at the same time, giving'them the proper angularity, I provide a rod, 4,to extend between the flexible pieces, 2, which is of suflicient lengthso that when the rod is at the ends of the slots, 2 farthest from theface, the pieces, 2, will converge slightly toward their outer ends, butwill hold the lens cells as far apart as they will be required in actualuse.

It will be seen that by reason of the convergence of the pieces, 2, thelens cells will have a slight angularity to each other. The ends of therod, 4, are bored and tapped at 4, and headed bolts, 5 are screwedtherein through the slots, 2. When the rod, 4, is drawn toward the faceit will force the outer ends of the pieces, 2, nearer together therebyproviding means for adjusting the separation of the magnifiers to suitthe wearer by the extremely simple operation of moving the rod, 4,backward and forward, toward and away from the face.

To maintain the rod, 4, in the desired position, I have provided theslightly dished spring or friction washers, 6, and 6*, which haveprovided in their centers openings, 6", for the passage of the bolt,5,and which are placed upon either side of the piece, 2, as clearlyshown in Fig. 2.

From the above description, takenin connection with the drawings, itwill be seen that my loop is of extreme simplicity both in structure andadjustment which is of great advantage both to the manufacturer anduser, while at the same time nothing has been omitted which willcontribute to its practicability.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. A binocular loop comprising a bridge, brackets extending outwardlytherefrom out of the field of vision of the eyes, temples pivoted to theouter ends of said brackets, flexible arms extending forwardly from theinner ends of said brackets, lens cells or frames extending laterallyfrom the forward ends of said flexible arms, longitudinal slots in saidarms, a rod extending between said slots adapted to hold the arms so asto slightly converge at their forward ends when said rod is at theforward end of said slots, and friction 'plates upon said rod upon eachside of said arms for holding said rod in the desired position in saidslots.

2. A binocular loop comprlsing a bridge,

brackets extending therefrom, temples pivoted to the outer ends of saidbrackets, flexible arms extending forwardly from said brackets, lenscells or frames extending from said flexible arms, slots in said arms,and a rod extending between said slots adapted to hold the arms so as toslightly converge at their forward ends When said rod is at the forwardend of said slots.

3. A binocular loop comprising a bridge, brackets extending therefrom,temples pivoted to the outer ends of said brackets, flexible armsextending forwardly from said brackets, lens cells or frames extendingfrom said flexible arms, slots in said arms, a rod extending betweensaid slots adapted to hold the arms so as to slightly converge at theirforward ends When said rod is at the for- Ward end of said slots, andmeans forfrictionally holding said rod in the desired longitudinalposition in said slots.

In testimony whereof I afiix my signature in the presence of tWoWitnesses.

E. O. Tnononn, EDWARD S. CRAVEN.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

' Washington, I). G.

